Table 1.

Preconception phase data collection and measurement activities

Activity	Month of participation
	0	6	12	24
Consent	X
Demographics and SES	X		M	X
Reproductive health and history	X
Life skills, empowerment, and SDH	X		M	X
Anthropometry	X	M	X	X
Hemoglobin	X		M	X
Serum ferritin	M		M	M
Hepcidin	M		M	M
Transferrin receptor	M		M	M
Infection indicators (CRP, AGP)	M		M	M
Vitamin A	M		M	M
Vitamin D	M		M	M
Household food insecurity	X		M	X
Food group consumption survey (1 week)	D
24-h recall	D

X: all participants; M micronutrient status subgroup participants only; D dietary status subgroup participants only